When to Plant Amaranthus in Newport, RI

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Newport it's a good idea to figure out when you can plant amaranthus.


Planting Calendar for Amaranthus

Frost tolerance for amaranthus: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Since amaranthus require warm weather you must wait until after the last frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant amaranthus
Possibly ok, but a risky time to plant amaranthus
Probably not a good time to plant amaranthus

The earliest that you can plant amaranthus in Newport is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant amaranthus and expect a good harvest is probably August. If you wait any later than that and your amaranthus may not have a chance to really do well. You can get started a few weeks earlier by starting your amaranthus indoors.

Last Frost Date

On average the last frost is on April 15 in Newport. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Newport is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Newport last frost occurs after April 15 so make sure that you are ready to protect your amaranthus in the event of a surprise late frost.

USDA Zone Info for Newport

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Newport

You may be interested in your other planting guides for Newport.